| 摘要 |
<p>A mechanical amplifier has an elongated beam rotatable about a virtual pivot point in an amount proportional to the displacement of an actuator connected to the amplifier. A pair of ceramic multilayer piezoelectric actuators apply forces to opposite sides of the elongated beam causing rotation of the beam about the virtual pivot point in an amount proportional to the displacement of the actuators. In addition, a pair of flexures are connected to the opposite sides of the beam and to a frame. The frame functions as a substantially non-vibrating mechanical ground. The shape of the mechanical amplifier elements including the flexures, the beam and connectors for the flexures and actuators are designed to substantially maintain the virtual pivot point of the beam under load conditions within or near an area defined by the intersection of the axes of the flexures and the actuator forces. <IMAGE></p> |
